Answer: D his grandfather influenced his choice of a career
Explanation:
The articles made mention of how Admiral Nimitz's grandfather was a sea captain who told Nimitz so much about the ocean that Nimitz decided that he wanted to pursue a career on the water. The grandfather can therefore be said to be the one who influenced Nimitz to join the Navy.
This event shows how strong the influence of parents is and why it is important that they strive to be positive role models for their children because it has a strong chance of imparting how they make choices as they grow up.